From f11ab4ca382f2c4cc653b1b8bd4437837558c3e5 Mon Sep 17 00:00:00 2001
From: Archana Obannagari <aobann@codeaurora.org>
Date: Fri, 8 Sep 2017 20:35:28 +0530
Subject: [PATCH] msm: kgsl: Fixing an uninitialized variable in
_gpuobj_map_useraddr()
Uninitalized kernel variable passes to userspace, it may have data
from stack. To avoid data leak from kernel to userspace initializes
struct kgsl_gpuobj_import_useraddr to zero.
CRs-Fixed: 2096006
Change-Id: Ib79b030cd5e3edd7279632af20dc3fac95eb73d4
Signed-off-by: Archana Obannagari <aobann@codeaurora.org>
---
drivers/gpu/msm/kgsl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/msm/kgsl.c b/drivers/gpu/msm/kgsl.c
index 8512d22bb66e..5937b840b3b3 100644
--- a/drivers/gpu/msm/kgsl.c
+++ b/drivers/gpu/msm/kgsl.c
@@ -2162,7 +2162,7 @@ static long _gpuobj_map_useraddr(struct kgsl_device *device,
struct kgsl_mem_entry *entry,
struct kgsl_gpuobj_import *param)
{
- struct kgsl_gpuobj_import_useraddr useraddr;
+ struct kgsl_gpuobj_import_useraddr useraddr = {0};
int ret;
param->flags &= KGSL_MEMFLAGS_GPUREADONLY
--
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